Traction-engine.



Patented May 21, 1912. 2 SHEETS-SHEET}.

} [lg en or by Afforn- J. F. BOONE. TRACTION ENGINE. APPLICATION FILED DEG. 9, 1910. 1,027,31' 1 E A w I 4 6 III. I. llll llll'l T :I. 0 .1 f

W/fr vesses 97% J. F. BOONE. TRACTION ENGINE. APPLICATION FILED DBO. 9, 1910.

Patented m 21, 1912.

2 SHEETSSHEET 2.

6 e m m rigidly connected with the axle 9, which in To-all whom it may concern:

UNITED s A Es PATENT OFFICE.

IJOHN F. IBOQNE, or PORTLAND, OREGON.

TRACTIQN ENGINE.

'Be it known that I, JOHN F. Booms, a citizen of the United States, residing at Portland, in the county of Multnomah, State of Oregon, have invented certain new and j: useful Improvements in Traction-Engines,

'- of which the following is a description, ref- :erence being bad to the accompanying drawing and to the letters and figures of reference marked thereon.

The IIIVGIIt-IOHIlfltGS to new and useful improvements in tract-ion engines, and more "especially to traction engines wherein both =the' forward and rear trucks are connected to the main frame so that they may be turned relative thereto.

An object of the invention is to provide mechanism for connecting and supporting I 'f the trucks whereby the same may be turned simultaneously by the aid of a single steering wheel. A further object of .the invention. is to I provide a driving connection with a motor operating shaft carried by the main frame and the trucks which connection will allow the free swinging of the truck about a piv- 'otal connection with the main frame.

i 'is a detail plan view showing both trucks These androther objects will in part be obvious and will in part be hereinafter more fully described.

1n the drawings which show by way of illustration one embodiment of the invention; Figure 1 is a side elevat on of a traction engine embodying my improvements;

Fig. 2 is a plan view of the same; Fig. 3 is a 'rear end View of the traction engine; Fig.

and the steering gear and in dotted lines showing the trucks swung relative to the main frame, for changing the direction of movement of the engine.

My improved engine consists of a main frame 2, which is supported on traction wheels 10, 10, at the rear and 10', 10, at the front'of the frame. The wheels 10, 10, are

- to rock about said connection in a. direction transversely of said frame. The truck frame 11 is also provided with curved bolsters 16, 16, on which the circular members 15, attached to the main body portion 2,

Specification of Letters Patent.

' rests.

Patented May21, 1912.

Application filed December 9, 1910. Serial No. 596,450.

rest. The forward wheels 10, 10, are

rigidly connected to' an axle 9, which in turn is ournaled in a truck frame 11.v The truck frame 11 is provided with bolsters 16, 16, on which the circular member 15 The pivoted connection 14 between the truck frame 11 and the main frame 2 is similar in all respects to the connection Mabove referred to. These connections between the truck frames and the main frame or body portion 2, allows each of the trucks to be turned relative to the body portion 2, and will allow the body portion 2 to rock transversely.

As a means for turning the truck relative to the main frame for steering the traction engine, I have provided a single steering wheel 25, which is rigidly attached to a steering post 24, mounted in any suitable way on the main frame 2 of the traction engine. The truck frame 11 is provided with forwardly extending arms 20 and 21, while the trnelc frame 11 carries rearwardly extending arms 17 and 18.

As clearly shown in Fig. 1, the arms 17 and 18 are arranged in a plane above the arms 20 and 21, and overlap the same. The arm 20 at its outer end is connected by a chain 'or-other suitable flexible connection 23, with the arm 18 at a point some distance from its outer end, while the arm 21, at a point adjacent its outer end, is connected with a chain or other flexible connection 22, which in turn is connected to the arm 17 at a point some distance from its outer end. It will thus be seen, that if the frame 11 be swung in one direction about its pivotal connection with the main frame, the chain 22 will cause the frame 11' to be swung in an opposite direction about its pivotal connection with the main frame, and the arms 21 and 17 will swingin the same direction relative to the side of the main frame. The arm 21 will now take the position shown in dotted lines at 21,

and the chain or flexible connection 22 will take the position shown in dot-ted'lines at 22, while the arm 18 will swing to the position shown in dotted lines at 18," and the chain 23 will take the position shown in dotted lines at 23. When the 'framesare positioned as shownin dotted lines "above referred'to, the traction wheels 10, '10, and

10', 10, will also take the position shown in dotted linesin Fig. 4, and the .wheels are now positioned so as to change'the direction of movement 'of the traction engine.

25, the chain 19 will be wound on to and unwound from the steering post and will take the position shown in dotted lines at 19. The turning of the steering wheel in the opposite direction will swing the supporting frames for the trucks back to normal position or to the other side of the center line of the traction engine and position said trucks for straight ahead movement or for turning in the opposite direction.

As a means for driving the traction engine, I have provided as herein shown, a gasolene engine 1, which is mounted on the main frame or body 2 of the engine, and connected to the driving shaft 3 by suitable gears 4. A reverse gear 5 of the usual construction may be used for furnishingmeans so that the traction engine may be propelled either in a forward onbackward direction. The driving shaft 3 is mounted in suitable brackets 6, 6', andcarries at its outer end sheaves 7, 7, which are rigidly mounted thereon. Mounted centrally of the axle 9 is a sheave 8 which is rigidly connected to the axle. A driving chain 13 extends over'the sheave 7 and over the sheave 8. A guiding sheave 12 is mounted on the frame 11' and directs the path of movement of the driving chain 13, so that it extends in substantially a vertical direction from the sheave T to the sheave 8. The sheave 7 as herein shown, is mounted so as to turn about an axis at right angles to the axis of the sheave 8 when the truck ll is in position 'for straight ahead movement of the traction engine. The

sheave 7' is connected by a suitable chain '13,

with a sheave 8' on the axle 9.

A guiding sheave 12 connected to the frame 11', guides the chain 13 so that it extends in substantially a vertical direction in a manner similar to the chain drive 13. This vertical connection between the driving shaft and the sheaves on the axles of the trucks, allows the trucksto be swung about their pivotal connections with the main frame, Without interferring or straining in any way, the vertical driving connection.

- It is obvious that minor changes in the details of construction and arrangement of parts may be made, without departing from the spirit of my invention as set forth in the appended claims.

Having thus particularly described my invention, whatI claim as new and desire to secure by Letters Patent, is

1. A traction engine including in combi nation, a main frame, a truck support pivoted at the end of said main frame, an axle journaled in said truck support, traction wheels carried by the axle, a driving shaft. extending longitudinally of the main frame, and carried thereby, a motor operatively connected with said driving shaft, a sheave located on the end of the shaft adjacent the truck. a sheave mounted centrally on the axle, flexible driving means for connecting the sheave at the end of the shaft with the sheave on the axle, and a guiding sheave carried by the truck frame for engaging and directing the path of movement of the Hex-i.

ble driving means.

2. A traction engine includingdn, combi natlon, a main frame, a truck pivoted at each end of said main frame, an axle gournaled in each truck frame, traction wheels.

carried by said axles, a driving shaft extending longitudinally of said main frame, and carried thereby. a motor operatively connected with said driving shaft, {1. sheave located at each end of the driving shaft, sheave mounted centrally on each axle, a driving chain for connecting each of the sheaves at the end of the shaft with the sheaves on each axle,'and a guiding sheave carried by each truck frame for engaging and directing the path of movement of the driving chain for the traction wheels on each truck frame.

A traction engine including in combition, a main frame, a truck pivoted at each end of said frame, an axle journalcd in each truck frame, traction wheels carried by said axles, a driving shaft, extending longitudinally of said frame and carried thereby, a motor opcratively connected with said driving shaft, :1 sheave mounted centrally of each axle, a driving chain for connecting each of the sheaves of the ends of the shaft with the sheaves on each axle, and a guiding sheave carried by each truck frame, for en gaging and. directing the path of movement of the driving chain for the traction wheels of each truclrframe, and means for simultaneously turning the trucks about their pivotal connections to the main frame in op posite directions for steering the engine.

Tn testimony whereof l have atiixed my signature, in presence of two witnesses.

JOHN F. BOONE. [cs] WVitnesses:

FRANK A, Brnuxoron,

Erma A. MAY. 

